#include <stdio.h>
//A>>X X>>C C>>Z
int main(){
	char a,b,c;
	for(a="X";a<="Z";a++){
		for(b="X";b<="Z";b++){
			for(c="X";c<="Z";c++){
				if(a!=b&&a!=c&&b!=c&&a!="X"&&c!="X"&&c!="Z"){
					printf("A->%c,B->%c,C->%c",a,b,c);
				}
			}
		}
	}return 0;
}
